CVE-2026-22709

Name: CVE-2026-22709
Creator: NVD / NIST
Published: 2026-01-26T22:15:55.89+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 10/10EPSS 1.22%

Last modified Jun 17, 2026

CVE-2026-22709 is a critical-severity vulnerability rated 10/10 on the CVSS scale. vm2 is an open source vm/sandbox for Node.js. In vm2 prior to version 3.10.2, `Promise.prototype.then` `Promise.prototype.catch` callback sanitization can be bypassed. EPSS estimates a 1.22% chance of exploitation in the next 30 days.

Description

vm2 is an open source vm/sandbox for Node.js. In vm2 prior to version 3.10.2, `Promise.prototype.then` `Promise.prototype.catch` callback sanitization can be bypassed. This allows attackers to escape the sandbox and run arbitrary code. In lib/setup-sandbox.js, the callback function of `localPromise.prototype.then` is sanitized, but `globalPromise.prototype.then` is not sanitized. The return value of async functions is `globalPromise` object. Version 3.10.2 fixes the issue.

Metrics

CVSS 3.1

10/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

1.22%

64.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Vm2 Project	Vm2	< 3.10.2

References

https://github.com/patriksimek/vm2/commit/4b009c2d4b1131c01810c1205e641d614c322a29Patch
https://github.com/patriksimek/vm2/releases/tag/v3.10.2Product, Release Notes
https://github.com/patriksimek/vm2/security/advisories/GHSA-99p7-6v5w-7xg8Exploit, Vendor Advisory

Timeline

Published: Jan 26, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-22709?

How severe is CVE-2026-22709?

CVE-2026-22709 has a CVSS score of 10/10 (CRITICAL severity). The EPSS model estimates a 1.22% probability of exploitation in the next 30 days.

How do I fix CVE-2026-22709?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-22709?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST